Otto Ohm are an Italian Dub, Raggae and Alternative band from Roma. Formed in 1997 from an idea by Andrea Vincenzo Leuzzi and Fabrizio De Angelis, who started playing in a home studio, and from Fabrizio Bacherini' suggestions. Then other members joined, friends of the duo: Daniela Mariani, Stefano Bari, Emanuele Flammini, Paolo Pecorelli, Robert Duenas and Alessia Marcato.

Al Mukawama, musical group formed by Luca " 'or Zulù" Persico, J Pope (founders and former members of the 99 Posse) and Perch (dubmaster rhythm and soul of Zion Train).. The name of the group derives from an Arabic word in Italian which means "The Resistance", chosen as the antithesis to the racist vision of Arabic Muslim automatically associated with terrorism and fundamentalism.